All this time I thought the male saved the female, and it was the other way around!!
We don't know the genders or if these beings even have genders. Maybe they're both the same gender, you can't assume one is male and one is female just because they're blue and pink respectively.
Technically true, we don't know genders, they just called them mates...mates assumes some sort of sexual reproduction between the two or the capability of it. If they were the same gender this would be less likely, even with aliens.